CN209767149U - Three-phase combined overvoltage protector - Google Patents

Abstract

The utility model discloses a three-phase combination formula overvoltage protector, including the protector base, top one side fixed mounting of protector base has first phase protector, the top middle part fixed mounting of protector base has second phase protector, the top opposite side fixed mounting of protector base has third phase protector, the outside lower extreme of first phase protector, second phase protector and third phase protector all is equipped with first shell, the bottom fixed mounting of first shell is at the top of protector base. The three-phase combined overvoltage protector realizes the purpose of convenient disassembly by arranging the through hole and the convex block, and brings convenience to users. Through setting up the sealing member, make it when easy installation, also guaranteed sealed security, still have insulating effect simultaneously.

Description

Three-phase combined overvoltage protector

Technical Field

The utility model relates to an overvoltage protection device technical field specifically is a three-phase combination formula overvoltage protection device.

Background

The overvoltage protector is a device for overvoltage protection of high-voltage equipment of an electric power system. The working principle of the device is as follows: the current guiding device of the overvoltage protector is connected with the insulator in parallel, when a tower or a lightning conductor is struck by lightning, the high potential caused by lightning current enables the series gap of the line protector to work, the potential difference between a tower arm and a lead is reduced, the insulator is guaranteed not to flashover any more, and therefore the line is prevented from tripping and power failure. After the series gap acts, the residual voltage of the overvoltage protector body is limited to be far lower than the internal flashover voltage of the insulator, and power frequency follow current can be extinguished by self under the system frequency voltage of overvoltage, so that normal power supply is guaranteed. Meanwhile, the insulating layer of the insulated wire does not need to be stripped during installation, and the use is safer and more reliable.

The three-phase combined overvoltage protector is a new type overvoltage protector, mainly used in the power grid of power generation, power supply and power utilization enterprises. The three-phase combined overvoltage protector is used for protecting electrical equipment such as a transformer, a switch, a bus, a motor and the like, can limit atmospheric overvoltage and operation overvoltage caused by various switches, and can reliably limit interphase and relative ground overvoltage.

The 10kV overvoltage protector disclosed in chinese utility model patent application publication CN 202721441U, the 10kV overvoltage protector, though solving the problem of eccentricity of the gap ring by adding a connecting piece, has the disadvantage of being not easy to disassemble, and is inconvenient to open to check its internal circuit when it is out of order, so it is necessary to invent a three-phase combined overvoltage protector to solve the above problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three-phase combination formula overvoltage protector to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a three-phase combined overvoltage protector comprises a protector base, wherein a first-phase protector is fixedly mounted on one side of the top end of the protector base, a second-phase protector is fixedly mounted in the middle of the top end of the protector base, a third-phase protector is fixedly mounted on the other side of the top end of the protector base, first shells are arranged at the lower ends of the outer sides of the first-phase protector, the second-phase protector and the third-phase protector, the bottom of each first shell is fixedly mounted at the top of the protector base, the second shells are sleeved at the upper ends of the outer sides of the first-phase protector, the second shell and the third-phase protector, thread teeth are arranged on the upper portion of the inner side surface of each first shell and the lower portion of the outer side surface of each second shell, the upper portion of the inner side surface of each first shell and the lower portion of the outer side surface of each second, the flange is positioned above the thread teeth, the edge of the flange is positioned at the top of the first shell, the outer surfaces of the first phase protector, the second phase protector and the third phase protector are respectively provided with a first inner shell and a second inner shell, the outer surfaces of the first inner shell and the second inner shell are respectively provided with a plurality of fins, the two circumferential ends of the first inner shell and the two circumferential ends of the second inner shell are respectively provided with a sealing element, the inner side of one circumferential end of the first inner shell is provided with a through hole, the other circumferential end of the first inner shell is provided with a first flange, the outer side of the first flange is provided with a hook, the inner side of one end of the second inner shell in the circumferential direction is provided with a hook groove corresponding to the hook, the other end of the second inner shell in the circumferential direction is provided with a second flange, one side, away from the hook groove, of the second flange is provided with a convex block corresponding to the through hole, and the outer side of the second inner shell is provided with an elastic rib.

Preferably, the through hole and the first flange are located between two adjacent fins, and the hook groove and the second flange are located between two adjacent fins.

Preferably, the through holes and the first flanges are arranged at equal intervals, and the number of the elastic ribs is 3-5.

Preferably, cables are fixedly connected to the tops of the first phase protector, the second phase protector and the third phase protector, and the cables are located above the second casing.

Preferably, the sealing element is a rubber sealing element, and the elastic rib is a glass fiber elastic rope.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) this three-phase combination formula overvoltage protection device through setting up through-hole and lug, has realized its convenient to detach's purpose, when breaking down, can very easy dismantlement open and inspect the internal circuit, for the user has brought the convenience, has also practiced thrift the cost.

(2) This three-phase combination formula overvoltage protection device through setting up the sealing member, makes it when easy installation, has also guaranteed sealed security, still has insulating effect simultaneously, through setting up the elasticity muscle for the connection of inner shell is inseparabler and firm, is difficult for breaking away from.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the inner case structure of the protector

Fig. 3 is a top view of the inner housing of the protector.

In the figure: the protector comprises a protector base 1, a first phase protector 2, a second phase protector 3, a third phase protector 4, a cable 5, a first outer shell 6, a second outer shell 7, a flange 8, a thread tooth 9, a first inner shell 10, a second inner shell 11, a fin 12, a sealing element 13, a through hole 14, a first flange 15, a hook 16, a hook groove 17, a second flange 18, a convex block 19 and an elastic rib 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention; meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

Referring to fig. 1-3, the present invention provides a technical solution: a three-phase combined overvoltage protector comprises a protector base 1, a first phase protector 2 is fixedly installed on one side of the top end of the protector base 1, a second phase protector 3 is fixedly installed in the middle of the top end of the protector base 1, a third phase protector 4 is fixedly installed on the other side of the top end of the protector base 1, cables 5 are fixedly connected to the tops of the first phase protector 2, the second phase protector 3 and the third phase protector 4, first shells 6 are arranged at the lower ends of the outer sides of the first phase protector 2, the second phase protector 3 and the third phase protector 4, the bottom of each first shell 6 is fixedly installed at the top of the protector base 1, second shells 7 are sleeved at the upper ends of the outer sides of the first phase protector 2, the second phase protector 3 and the third phase protector 4, the cables 5 are located above the second shells 7, thread teeth 9 are arranged on the upper portion of the inner side face of the first shell 6 and the lower portion of the outer side face, the upper portion of the inner side face of the first outer shell 6 is in threaded connection with the lower portion of the outer side face of the second outer shell 7 through threaded teeth 9, a flange 8 is arranged on the outer side face of the second outer shell 7, the first outer shell 6 and the second outer shell 7 are connected more firmly and are not prone to sliding, the flange 8 is located above the threaded teeth 9, the edge of the flange 8 is located at the top of the first outer shell 6, a first inner shell 10 and a second inner shell 11 are arranged on the outer surfaces of the first phase protector 2, the second phase protector 3 and the third phase protector 4, a plurality of fins 12 are arranged on the outer surfaces of the first inner shell 10 and the second inner shell 11, a heat dissipation effect is provided for the three-phase overvoltage protector through the arrangement of the fins 12, sealing elements 13 are arranged at the two circumferential ends of the first inner shell 10 and the two circumferential ends of the second inner shell 11, the sealing elements 13 are rubber, the rubber is rich in elasticity at room temperature, can generate larger deformation under the action of small external force, can recover to the original shape after the external force is removed, belongs to completely amorphous polymer, has low glass transition temperature and large molecular weight which is more than hundreds of thousands, ensures the sealing safety when being easily installed by arranging a sealing element 13, and simultaneously has the insulation effect, the inner side of one circumferential end of the first inner shell 10 is provided with a through hole 14, the other circumferential end of the first inner shell 10 is provided with a first flange 15, the through hole 14 and the first flange 15 are both positioned between two adjacent fins 12, the through hole 14 and the first flange 15 are arranged at equal intervals, the outer side of the first flange 15 is provided with a clamping hook 16, the inner side of one circumferential end of the second inner shell 11 is provided with a hook groove 17 corresponding to the clamping hook 16, and the aim of convenient disassembly is realized by arranging the clamping hook 16 and the hook groove 17, when breaking down, can very easy dismantlement open and inspect the inner line, for the user has brought the convenience, the circumference other end of second inner shell 11 is equipped with second flange 18, hook groove 17 and second flange 18 all are located between two adjacent fins 12, one side that hook groove 17 was kept away from to second flange 18 is equipped with the lug 19 corresponding with through-hole 14, through setting up through-hole 14 and lug 19, its convenient to detach's purpose has been realized, the outside of second inner shell 11 is equipped with elastic rib 20, through setting up elastic rib 20, make the connection of inner shell inseparabler and firm, be difficult for breaking away from, elastic rib 20 is glass fiber elastic rope, glass fiber is the inorganic non-metallic material of excellent performance, the variety is various, the advantage is that insulating nature is good, the heat resistance is strong, corrosion resistance is good, mechanical strength is high. The novel hair-dyeing and-weaving process is characterized in that glass balls or waste glass is used as a raw material and is manufactured through processes of high-temperature melting, wire drawing, winding, weaving and the like, the diameter of each monofilament ranges from several micrometers to twenty micrometers, the diameter of each monofilament is equivalent to 1/20-1/5 of one hair, and each fiber strand consists of hundreds of monofilaments and even thousands of monofilaments. Glass fibers are commonly used as reinforcing materials in composite materials, electrical and thermal insulation materials, circuit substrates, and other various fields of the national economy. The number of the elastic ribs 20 is 3 to 5.

The working principle is as follows: when using, will be in the same place first inner shell 10 and the installation of second inner shell 11, inject lug 19 into through-hole 14, hook 16 hook in hook groove 17, simultaneously because the effect of sealing member 13 can closely fix first inner shell 10 with second inner shell 11, prevent the entering of water and foreign matter, then reuse elasticity muscle 20 is fixed, make it connect more firmly, after the inner shell has been installed, put into the protector in the first shell 6 on protector base 1 top, second shell 7 cup joints in the protector outside, second shell 7 and first shell 6 threaded connection, when needs are dismantled, according to the reverse dismantlement of the step of installation can.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a three-phase combination formula overvoltage protector, includes protector base (1), its characterized in that: top one side fixed mounting of protector base (1) has first looks protector (2), the top middle part fixed mounting of protector base (1) has second phase protector (3), the top opposite side fixed mounting of protector base (1) has third phase protector (4), the outside lower extreme of first looks protector (2), second phase protector (3) and third phase protector (4) all is equipped with first shell (6), the bottom fixed mounting of first shell (6) is at the top of protector base (1), second shell (7) have all been cup jointed to the outside upper end of first looks protector (2), second phase protector (3) and third phase protector (4), the medial surface upper portion of first shell (6) and the lateral surface lower part of second shell (7) all are equipped with thread tooth (9), the medial surface upper portion of first shell (6) and the lateral surface lower part of second shell (7) are through thread tooth (9), (the medial surface upper portion of second shell (7) passes through the thread tooth:(s) 9) Threaded connection, the lateral surface of second shell (7) is equipped with flange (8), flange (8) are located the top of thread tooth (9), just the edge of flange (8) is located the top of first shell (6), the surface of first phase protector (2), second phase protector (3) and third phase protector (4) all is equipped with first inner shell (10) and second inner shell (11), the surface of first inner shell (10) and second inner shell (11) all is equipped with a plurality of fins (12), the circumference both ends of first inner shell (10) and the circumference both ends of second inner shell (11) all are equipped with sealing member (13), the circumference one end inboard of first inner shell (10) is equipped with through-hole (14), the circumference other end of first inner shell (10) is equipped with first flange (15), the outside of first flange (15) is equipped with pothook (16), the inner side of one circumferential end of the second inner shell (11) is provided with a hook groove (17) corresponding to the hook (16), the other circumferential end of the second inner shell (11) is provided with a second flange (18), one side, far away from the hook groove (17), of the second flange (18) is provided with a convex block (19) corresponding to the through hole (14), and the outer side of the second inner shell (11) is provided with an elastic rib (20).

2. A three-phase combination overvoltage protector according to claim 1 wherein: the through hole (14) and the first flange (15) are located between two adjacent fins (12), and the hook groove (17) and the second flange (18) are located between two adjacent fins (12).

3. A three-phase combination overvoltage protector according to claim 1 wherein: the through holes (14) and the first flanges (15) are arranged at equal intervals, and the number of the elastic ribs (20) is 3-5.

4. A three-phase combination overvoltage protector according to claim 1 wherein: the top of the first phase protector (2), the top of the second phase protector (3) and the top of the third phase protector (4) are fixedly connected with cables (5), and the cables (5) are located above the second shell (7).

5. A three-phase combination overvoltage protector according to claim 1 wherein: the sealing element (13) is a rubber sealing element, and the elastic rib (20) is a glass fiber elastic rope.